22213030221 has 14 divisors (see below), whose sum is σ = 33304311150. Its totient is φ = 14808686328.

The previous prime is 22213030193. The next prime is 22213030249. The reversal of 22213030221 is 12203031222.

It is an interprime number because it is at equal distance from previous prime (22213030193) and next prime (22213030249).

It can be written as a sum of positive squares in only one way, i.e., 11769212196 + 10443818025 = 108486^2 + 102195^2 .

It is not a de Polignac number, because 22213030221 - 2⁶ = 22213030157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22213030194 and 22213030203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213030261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 15234546 + ... + 15236003.

Almost surely, 2^22213030221 is an apocalyptic number.

It is an amenable number.

22213030221 is a deficient number, since it is larger than the sum of its proper divisors (11091280929).

22213030221 is an frugal number, since it uses more digits than its factorization.

22213030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30470567 (or 30470552 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22213030221 its reverse (12203031222), we get a palindrome (34416061443).

The spelling of 22213030221 in words is "twenty-two billion, two hundred thirteen million, thirty thousand, two hundred twenty-one".